One option might be to purchase the commercial version of the Timemaster, either the Toro Turfmaster or the Exmark Commercial 30. They come with a Kawasaki engine that has a good bit more power. They also cost more, about $2000 including tax.
I own a Timemaster and a Exmark 30". The Briggs engine has been somewhat problematic.
The 2015 model mowers will be introduced soon. Have you considered waiting a bit to see what is coming? The 30" mowers have been a hit and other manufacturers will likely be introducing their versions.
The GIE Expo is late October in Louisville, Ky. While this event is primarily for commercial equipment sometimes residential products are shown to the public.
One other suggestion: YBravo makes a 25-26" mower. Not sure if it is available through dealers or online only.